13.04.2016 - a simple way of reproducing the kernel hang is to disable I have 4 servers running the latest 16.04 updates from the While logged into the iscsi sessions all I have to do is reboot the server and I get a hang. .. Apr 26 08:52:13 ICTM1612S02H1 systemd[1]: Failed to start Login to default iSCSI targets..